U.S. patent application number 13/710104 was filed with the patent office on 2014-06-12 for motor programming tool with handle-mounted pcb.
This patent application is currently assigned to NIDEC MOTOR CORPORATION. The applicant listed for this patent is NIDEC MOTOR CORPORATION. Invention is credited to Charles L. Geiler, Chetan O. Modi, Robert J. Ploof, JR., Payman Rassoolkhani.
Application Number | 20140162502 13/710104 |
Document ID | / |
Family ID | 50881398 |
Filed Date | 2014-06-12 |
United States Patent
Application |
20140162502 |
Kind Code |
A1 |
Geiler; Charles L. ; et
al. |
June 12, 2014 |
MOTOR PROGRAMMING TOOL WITH HANDLE-MOUNTED PCB
Abstract
A motor programming tool is disclosed for associating with a
connection block of a motor and sending signals to a programmable
controller of the motor, where the connection block includes a
plurality of terminals coupled to the controller. The programming
tool includes a tool body with an interface generally corresponding
with the connection block of the motor, wiring operable to carry
the signals, and a plurality of terminal connecting assemblies to
associate with the motor terminals. The programming tool includes
circuitry disposed in the tool body. The circuitry is electrically
connected to the wiring and includes a power transmission portion
and a data transmission portion.
Inventors: |
Geiler; Charles L.;
(Caseyville, IL) ; Ploof, JR.; Robert J.;
(Collinsville, IL) ; Modi; Chetan O.; (St. Louis,
MO) ; Rassoolkhani; Payman; (St. Louis, MO) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
NIDEC MOTOR CORPORATION |
St. Louis |
MO |
US |
|
|
Assignee: |
NIDEC MOTOR CORPORATION
St. Louis
MO
|
Family ID: |
50881398 |
Appl. No.: |
13/710104 |
Filed: |
December 10, 2012 |
Current U.S.
Class: |
439/700 |
Current CPC
Class: |
H01R 13/6658 20130101;
H01R 13/6275 20130101; H01R 2201/20 20130101; H01R 13/2421
20130101 |
Class at
Publication: |
439/700 |
International
Class: |
H01R 13/15 20060101
H01R013/15 |
Claims
1. A motor programming tool for temporarily associating with an
electrical connection block of a motor and sending electrical
signals to a programmable controller of the motor, wherein the
electrical connection block of the motor houses a plurality of
motor terminals coupled to the controller, said programming tool
comprising: a tool body including an interface generally
corresponding with the electrical connection block of the motor for
selective association therewith; wiring operable to carry the
electrical signals, the wiring presenting terminal ends disposed in
the tool body; a plurality of terminal connecting assemblies
configured to associate with the plurality of motor terminals, with
each connecting assembly operably contacting a respective motor
terminal upon association of the tool body with the electrical
connection block of the motor; and circuitry being electrically
connected to the wiring and including a power transmission portion
and a data transmission portion, the circuitry being disposed in
the tool body.
2. The motor programming tool of claim 1, each connecting assembly
including amounting element electrically connected to at least one
terminal end of the wiring and a plunger element shiftable relative
to the mounting element while maintaining electrical connection
therewith.
3. The motor programming tool of claim 2, each plunger element
being biased toward an extended condition and being yieldably
retracted inwardly relative to the extended condition when the tool
body is associated with the electrical connection block of the
motor to facilitate electrical communication between the tool and
motor controller.
4. The motor programming tool as claimed in claim 3, each
connecting assembly including a tool terminal element configured to
directly contact and thereby electrically connect to a respective
motor terminal upon association of the tool body with the
electrical connection block of the motor, each plunger element
being configured to directly contact and thereby electrically
connect to a respective tool terminal element, such that each tool
terminal element is electrically interposed between the respective
plunger element and motor terminal, each tool terminal element
being positioned to cause the respective plunger element to retract
from the extended position when in contact therewith.
5. The motor programming tool as claimed in claim 4, said tool
terminal elements being replaceable, with electrical decoupling of
each tool terminal element from the wiring requiring only removal
from the yieldably biased contact with the respective plunger
element.
6. The motor programming tool as claimed in claim 3, each plunger
element being configured to directly contact and thereby
electrically connect to a respective motor terminal upon
association of the tool body with the electrical connection block
of the motor, with contact with the respective motor terminal
causing the plunger element to retract from the extended
position.
7. The motor programming tool as claimed in claim 1; and a flexible
conduit having a distal end at which the tool body is located, said
wiring extending along the conduit and into the tool body.
8. The motor programming tool as claimed in claim 7, said tool body
including a proximal handle portion connected to the conduit and a
distal connector portion that presents the interface.
9. The motor programming tool as claimed in claim 8, said circuitry
being disposed in the connector portion of the tool body.
10. The motor programming tool as claimed in claim 1, said
circuitry including a time-delay relay element, said time-delay
relay element being configured to sense when the connecting
assemblies are operably contacting the respective motor terminals,
initiate a delay, and then automatically transmit the electrical
signals to the motor controller.
11. The motor programming tool as claimed in claim 10, said delay
of the relay being selectively variable.
12. The motor programming tool as claimed in claim 10, said
time-delay relay element initiating a delay of approximately 1.2
seconds before completing a circuit to automatically transmit the
electrical signals to the motor controller.
13. The motor programming tool as claimed in claim 1, said
circuitry including a power input connectable to a power source and
a programming input connectable to a programming unit that
generates the electrical signals.
14. The motor programming tool as claimed in claim 1, said tool
body including a shiftable locking mechanism operable to
selectively secure the tool body relative to the electrical
connection block of the motor.
15. The motor programming tool as claimed in claim 14, said locking
mechanism including a sliding gate element moveable between an open
position, wherein the connecting assemblies are freely moveable
into and out of contact with the motor terminals, and a closed
position, wherein at least a portion of the gate element is in
contact with corresponding structure of the electrical connection
block of the motor and the connecting assemblies are restricted
from moving out of contact with the motor terminals.
16. The motor programming tool as claimed in claim 14. said locking
mechanism including a pivotable latch moveable between an open
position, wherein the connecting assemblies are freely moveable
into and out of contact with the motor terminals, and a closed
position, wherein at least a portion of the pivotable latch is in
contact with the motor and the connecting assemblies are restricted
from moving out of contact with the motor terminals.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates generally to a tool for
programming electric motor controllers. More specifically, the
present invention concerns a motor programming tool for temporarily
associating with an electrical connection block of a motor to send
electrical signals to a programmable controller of the motor.
[0003] 2. Discussion of the Prior Art
[0004] Those of ordinary skill in the art will appreciate that
electric motors typically include a controller that governs
parameters of how the motor operates (e.g., speed). The motor
controller may be programmable, which can allow a motor with a
given physical construction to be programmed to operate in a
certain desirable manner, as may be particularly advantageous when
the motor is coupled with a driven machine (e.g., a blower or a
compressor). In this way, a number of motors, which otherwise may
be physically alike, can each operate differently based on the
settings of the programmable controller. Since many machines driven
by motors are optimized when the motor associated therewith
operates at certain conditions, it is typically necessary to
program the motor controller, either during initial assembly or
during coupling with the driven machine.
[0005] As will also be readily appreciated, motors conventionally
include an electrical connection block that is configured to
receive power and operational control signals during operation.
Often, this connection block includes a molded connector with a
plurality of terminals coupled to the controller. Traditionally,
known motor programming tools have been configured to simply "plug
in" to the motor terminals of the connection block. In other words,
conventional motor programming tools have included a plurality of
sockets (receptacles or other corresponding terminals) that
correspond with and are configured to receive the motor terminals
(or vice versa). These programming tools are then "unplugged"
following completion of programming the controller.
[0006] While prior art motor programming tools have been
satisfactory in some respects, the required plugging and unplugging
of the mating terminals has also presented drawbacks. These
established connection systems are time consuming and require
significant insertion and separation force to connect and then
remove the mating terminals and sockets. As is generally known in
the art, the mating terminals and sockets provided between the
motor connection block and existing programming tools are not
particularly suited for multiple plugging and unplugging operations
during the life span of the components.
[0007] Such repeated plugging and unplugging operations can damage
the components, rendering either the terminals of the motor
connection block or the sockets of the programming tool (or both)
unusable. In the case of damaged terminals of the motor connection
block, the assembled motor must be at least partially disassembled
so that the terminals (or the entire connection block) may be
replaced. Similarly, in the case of damaged sockets of the
programming tool, the affected sockets must be replaced. Since
these sockets have traditionally been crimped, soldered, or
otherwise permanently connected to wiring of the tool, such repair
(requiring reconstruction of these permanent wiring connections
just to replace damaged sockets) is time consuming and results in
significant downtime in the useful life of the programming
tool.
SUMMARY
[0008] The present invention provides a motor programming tool for
associating with a connection block of a motor and sending signals
to a programmable controller of the motor. The inventive motor
programming tool is easy to use, provides fast and consistent
operation, and features a longer useful tool life than prior art
programming tools.
[0009] According to one aspect of the present invention, a motor
programming tool is provided for temporarily associating with an
electrical connection block of a motor and sending electrical
signals to a programmable controller of the motor, where the
electrical connection block of the motor houses a plurality of
motor terminals coupled to the controller. The programming tool
includes a tool body including an interface generally corresponding
with the electrical connection block of the motor for selective
association therewith and wiring operable to carry the electrical
signals. The wiring presents terminal ends disposed in the tool
body. The programming tool also includes a plurality of terminal
connecting assemblies configured to associate with the plurality of
motor terminals, with each connecting assembly operably contacting
a respective motor terminal upon association of the tool body with
the electrical connection block of the motor. The programming tool
also includes circuitry electrically connected to the wiring and
including a power transmission portion and a data transmission
portion. The circuitry is disposed in the tool body.
[0010] In one embodiment, each plunger element is configured to
directly contact and thereby electrically connect to a respective
motor terminal upon association of the tool body with the
electrical connection block of the motor, with contact with the
respective motor terminal causing the plunger element to retract
from the extended position. This direct connection between the
plunger and the motor terminal provides a low impact association
that is quick to establish, while ensuring secure electrical
connection between the tool and motor. Furthermore, this
arrangement eliminates the significant insertion and separation
forces required by connecting and then removing mating terminals
and sockets of conventional tools.
[0011] In another embodiment, each connecting assembly includes a
tool terminal element configured to directly contact and thereby
electrically connect to a respective motor terminal upon
association of the tool body with the electrical connection block
of the motor. Each plunger element is configured to directly
contact and thereby electrically connect to a respective tool
terminal element, such that each tool terminal element is
electrically interposed between the respective plunger element and
motor terminal, with each tool terminal element being positioned to
cause the respective plunger element to retract from the extended
position when in contact therewith. The use of tool terminal
elements may be advantageous to a customer or may simply be
preferred where the motor terminals are shaped such that direct
connection between the plungers and the motor terminals may not be
desired. Changing or replacing the tool terminal elements, where
they are used, is very quick and easy since the terminal element is
not permanently connected (via crimping, soldering, or the like) to
wiring of the tool, and specific length dimensions of the terminal
elements is not required. This results in greater uptime and a
longer useful life of the inventive motor programming tool.
[0012] In some embodiments of the invention, the circuitry
connected to the wiring includes a time-delay relay element
configured to sense when the connecting assemblies are operably
contacting the respective motor terminals, initiate a delay, and
then automatically transmit the signals to the motor controller.
The time delay provided by the integrated relay helps to ensure
that the electrical connection between wiring of the motor
programming tool and the programmable controller of the motor is
securely established before the program is transmitted to the motor
controller. The circuitry also automatically provides power to the
motor during programming, helping to simplify and expedite the
programming process when using the inventive motor programming
tool.
[0013] This summary is provided to introduce a selection of
concepts in a simplified form that are further described below in
the detailed description of the preferred embodiments. This summary
is not intended to identify key features or essential features of
the claimed subject matter, nor is it intended to be used to limit
the scope of the claimed subject matter.
[0014] Various other aspects and advantages of the present
invention will be apparent from the following detailed description
of the preferred embodiments and the accompanying drawing
figures.
[0015] BRIEF DESCRIPTION OF THE DRAWING FIGURES
[0016] A preferred embodiment of the present invention is described
in detail below with reference to the attached drawing figures,
wherein:
[0017] FIG. 1 is an isometric view of a motor programming tool
constructed in accordance with the principles of a preferred
embodiment of the present invention, shown with a tool body being
associated with a motor and an enclosed control box containing
circuitry for transmitting electrical signals to a programmable
controller of the motor;
[0018] FIG. 2 is an enlarged, fragmentary, isometric view of the
motor programming tool of FIG. 1, shown with the tool body being
disassociated from the motor and illustrating in detail an
electrical connection block of the motor;
[0019] FIG. 3 is an enlarged, fragmentary, isometric view of the
motor programming tool of FIGS. 1 and 2, particularly illustrating
in detail an interface of the tool body with a plurality of
terminal connecting assemblies configured to associate with a
plurality of motor terminals of the electrical connection block of
the motor, and with a locking mechanism in the form of a sliding
gate element disposed in a locked condition;
[0020] FIG. 4 is an enlarged, fragmentary, isometric view of the
motor programming tool of FIGS. 1-3, similar in many respects to
the view of FIG. 3, but particularly illustrating in detail the
sliding gate element of the locking mechanism disposed in an
unlocked condition;
[0021] FIG. 5 is an exploded, isometric view of the motor
programming tool of FIGS. 1-4, shown from a vantage point looking
generally downwardly toward the interface, particularly
illustrating details of construction of the tool body as depicted
in FIGS. 3 and 4, including the plurality of terminal connecting
assemblies and the locking mechanism;
[0022] FIG. 6 is an exploded, isometric view of the motor
programming tool of FIGS. 1-5, similar in many respects to the view
of FIG. 5, but shown from an opposite vantage point looking
generally upwardly from the interface;
[0023] FIG. 7 is an enlarged, fragmentary, partial cutaway,
sectional view of a portion of the motor programming tool of FIGS.
1-6 and a portion of the motor including the electrical connection
block as shown in FIG. 2, taken along the line 7-7 of FIG. 2, shown
with the tool body being disassociated from the motor, particularly
illustrating details of construction of the tool body and
corresponding elements configured for association between the motor
programming tool and the connection block;
[0024] FIG. 8 is an enlarged, fragmentary, partial cutaway,
sectional view of the portion of the motor programming tool
depicted in FIG. 7 and similar in many respects thereto, but shown
with the tool body being associated with the motor;
[0025] FIG. 9 is a fragmentary, isometric view of a portion of a
motor programming tool constructed in accordance with the
principles of another embodiment of the present invention, shown
with a tool body being associated with a motor, similar in many
respects to the motor programming tool shown in FIG. 1;
[0026] FIG. 10 is a fragmentary, isometric view of the motor
programming tool of FIG. 9, shown with the tool body being
disassociated from the motor and illustrating in detail an
alternative electrical connection block of the motor;
[0027] FIG. 11 is an enlarged, fragmentary, partial cutaway,
sectional view of a portion of the motor programming tool of FIGS.
9 and 10 and a portion of the motor including the electrical
connection block as shown in FIG. 10, taken along the line 11-11 of
FIG. 10, shown with the tool body being disassociated from the
motor, particularly illustrating details of construction of the
tool body and corresponding elements configured for association
between the motor programming tool and the connection block;
[0028] FIG. 12 is an enlarged, fragmentary, partial cutaway,
sectional view of the portion of the motor programming tool
depicted in FIG. 11 and similar in many respects thereto, but shown
with the tool body being associated with the motor;
[0029] FIG. 13 is a generally schematic electric wiring diagram of
the circuitry contained within the enclosed control box of FIG. 1
and wiring connected thereto, with terminal ends of the wiring
being disposed in the tool body, and with the circuitry including a
time-delay relay element;
[0030] FIG. 14 is an isometric view of a motor programming tool
constructed in accordance with the principles of another embodiment
of the present invention, shown engaging a connection block
presented by an interface controller of a motor and being secured
to the interface controller by a pivoting lock mechanism;
[0031] FIG. 15 is an enlarged, fragmentary side elevation view of
the motor programming tool of FIG. 14 illustrating the pivoting
lock mechanism in a first, closed position and in a second, open
position;
[0032] FIG. 16 is an isometric view of the motor programming tool
of FIGS. 14-15, shown with the tool body being disassociated from
the motor and illustrating in detail a programming interface
controller of the motor, which presents an electrical connection
block of the motor;
[0033] FIG. 17 is an enlarged, fragmentary isometric view of the
motor programming tool of FIGS. 14-16, particularly illustrating in
detail an interface of the tool body with a plurality of terminal
connecting assemblies configured to associate with a plurality of
motor terminals of the electrical connection block, and with a
pivoting locking mechanism disposed in a locked condition;
[0034] FIG. 18 is an enlarged, fragmentary isometric view of the
motor of FIG. 14, particularly illustrating in detail a controller
housing and the interface controller;
[0035] FIG. 19 is an isometric view of a motor programming tool
constructed in accordance with the principles of another embodiment
of the present invention, the motor programming tool including
circuitry disposed in a tool body, the circuitry including a power
input connectable to a power source and a programming input
connectable to a programming unit that generates electrical
programming signals; and
[0036] FIG. 20 is a partial cutaway view of the motor programming
tool of FIG. 19, showing a circuit board mounted in an interface
portion of the tool body, the circuit board supporting the
circuitry.
[0037] The drawing figures do not limit the present invention to
the specific embodiments disclosed and described herein. The
drawings are not necessarily to scale, emphasis instead being
placed upon clearly illustrating the principles of the preferred
embodiments.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0038] The present invention is susceptible of embodiment in many
different forms. While the drawings illustrate, and the
specification describes, certain preferred embodiments of the
invention, it is to be understood that such disclosure is by way of
example only. There is no intent to limit the principles of the
present invention to the particular disclosed embodiments.
[0039] With initial reference to FIGS. 1-8, a motor programming
tool 20 constructed in accordance with an embodiment of the present
invention is depicted for temporarily associating with an electric
motor 22.
[0040] As is generally customary, the motor 22 broadly includes a
rotor assembly (not shown), rotatable about an axis, and a stator
assembly (not shown). The rotor assembly and the stator assembly
are both contained within an internal motor chamber that is defined
by a motor case 24. As shown in FIG. 1, the rotor assembly includes
an axially disposed shaft 26 that projects outwardly from one end
of the motor case 24.
[0041] The motor case 24 is generally cylindrical and presents
opposite axial margins 28, 30. The motor case 24 comprises a shell
element 32 that includes a plurality of exhaust vent openings 34
disposed around a radially outer margin of the shell element 32 to
present a vented shell. The motor case 24 further comprises a
controller housing 36 and an endshield 38 disposed adjacent the
axial margins 28, 30, respectively, and secured to the shell
element 32.
[0042] As shown particularly in FIGS. 2, 7, and 8, an electrical
connection block 40 of the motor 22 is disposed within the
controller housing 36. As will be readily appreciated by one of
ordinary skill in the art, the electrical connection block 40
houses a plurality of motor terminals 42 that are electrically
connected to internal motor circuitry (not shown) via a plurality
of wires 44. In particular, the internal motor circuitry includes a
programmable controller (not shown) disposed within the controller
housing 36. The programmable controller is operable to control
operational characteristics of the motor 22 (e.g., speed), and is
electrically connected to at least some of the motor terminals 42.
With brief attention to FIGS. 7 and 8, each of the wires 44 is
connected to a respective motor terminal 42 in a conventional,
substantially permanent manner, such as by crimping (as shown) or
by soldering.
[0043] Returning briefly to FIG. 2, the illustrated electrical
connection block 40 includes a pair of generally linear protruding
elements 46, 48, with each element 46, 48 housing a plurality of
the motor terminals 42. In even more detail, each of the elements
46, 48 includes an opposed pair of lateral projections 50, 52,
respectively. Each of the projections 50, 52 includes a tang 54, 56
to facilitate secure connection between the electrical connection
block 40 and a matingly corresponding electrical connection block
(not shown), as will be readily appreciated by one of ordinary
skill in the art.
[0044] It is specifically noted that the particular shape of the
electrical connection block 40 depicted herein is provided by way
of example only, as the electrical connection block 40 could
alternatively take many other shapes without departing from the
teachings of the present invention. Moreover, one of ordinary skill
in the art will readily understand that the disposition of the
electrical connection block 40 within the controller housing 36 is
also provided by way of example only, as the electrical connection
block 40 could alternatively be disposed elsewhere along the motor
case 24. Generally speaking, the structure and operation of the
motor 22 (including the electrical connection block 40 and the
programmable controller electrically connected thereto) is
generally conventional in nature, as will be readily appreciated by
one of ordinary skill in the art, and need not be described in
further detail here. Furthermore, motor design may be otherwise
varied without departing from the scope of the present
invention.
[0045] Returning now to FIG. 1, the illustrated motor programming
tool 20 broadly includes a tool body 58 and wiring 60 operable to
carry electrical signals to the programmable controller of the
motor 22. In some embodiments, the motor programming tool 20
further includes circuitry 62 disposed within an electrical
enclosure 64, with the circuitry 62 being electrically connected to
the wiring 60 (as shown particularly in FIG. 13 and described
below).
[0046] The tool body 58 includes an interface 66 that generally
matingly corresponds with the electrical connection block 40 of the
motor 22, such that the interface 66 is configured for selective
association therewith. In more detail regarding the illustrated
embodiment, the tool body 58 further includes a proximal handle
portion 68, an intermediate portion 70, and a distal connector
portion 72 that presents the interface 66. The handle portion 68,
the intermediate portion 70, and connector portion 72 are secured
to one another with fasteners such as screws 74 (see FIGS. 5 and
6).
[0047] The handle portion 68 is substantially hollow to define a
cavity 76 therein. The intermediate portion 70 defines therethrough
a plurality of mounting holes 78. The connector portion 72 defines
therethrough a transverse slot 80 and a pin-receiving hole 82. A
sliding gate element 84 is received within the transverse slot 80,
with the sliding gate element 84 defining therethrough a pin slot
86. A movement-limiting pin 88 is snugly received within the
pin-receiving hole 82 of the connector portion 72. The
movement-limiting pin 88 is also received within the pin slot 86 of
the sliding gate element 84 to define a range of permissible
movement of the sliding gate element 84 within the transverse slot
80 of the connector portion 72.
[0048] In this way, the connector portion 72 and the sliding gate
element 84 of the tool body 58 cooperatively form a shiftable
locking mechanism that is operable to selectively secure the tool
body 58 onto the electrical connection block 40 of the motor 22. In
more detail, the sliding gate element 84 is moveable between an
open position (see FIG. 4), wherein the interface 66 can pass over
the tangs 54, 56 to thereby be freely moveable to mate with the
electrical connector block 40, and a closed position (see FIG. 3),
wherein at least a portion of the sliding gate element 84 is
disposed in contact with the tangs 54, 56 to thereby be restricted
from moving out of contact with the electrical connector block
40.
[0049] As shown in FIG. 1, the wiring 60 extends between the
circuitry 62 within the enclosure 64 and the tool body 58. In more
detail, the wiring 60 is encased within a flexible conduit 90 that
presents a distal end 92 (where the tool body 58 is located) and a
proximal end 94 (where the enclosure 64 is located). The wiring 60
extends along the conduit 90 and into the tool body 58 (more
specifically, within the cavity 76 defined within the handle
portion 68). The wiring 60 presents terminal ends 96 that are
disposed within the tool body 58 (see FIGS. 5-8).
[0050] With particular attention now to FIGS. 3-8, the programming
tool 20 further includes a plurality of terminal connecting
assemblies 98. Each of the terminal connecting assemblies 98 is
configured to associate with a respective one of the plurality of
motor terminals 42, with each connecting assembly 98 operably
contacting a respective motor terminal 42 upon association of the
tool body 58 with the electrical connection block 40 of the motor
22.
[0051] Each connecting assembly 98 broadly includes amounting
sleeve element 100 and a plunger element 102 that is shiftable
relative to the mounting sleeve element 100 while maintaining
electrical connection therewith. Each mounting sleeve element 100
is electrically connected to at least one terminal end 96 of the
wiring 60. In more detail with regard to the illustrated
embodiment, each of the mounting sleeve elements 100 is fixed
relative to the tool body 58. In even more detail with regard to
the illustrated embodiment, each of the mounting sleeve elements
100 is secured within a respective mounting hole 78 of the
intermediate portion 70 of the tool body 58 (see FIGS. 5 and 6).
The terminal ends 96 of the wiring 60 may be substantially
permanently connected to the mounting sleeve element 100, such as
by crimping, soldering, or the like.
[0052] As shown particularly in FIGS. 7 and 8, each plunger element
102 is biased toward an extended condition and is yieldably
retracted inwardly relative to the extended condition when the tool
body 58 is associated with the electrical connection block 40 of
the motor 22 to facilitate electrical communication between the
tool 20 in the motor controller.
[0053] In the illustrated embodiment, each connecting assembly 98
further includes a barrel 104 that slidably receives a respective
one of the plunger elements 102 therein. Each barrel 104 is
disposed within and is electrically connected to a respective one
of the mounting sleeve elements 100. The mounting sleeve element
100 and barrel 104 of each connecting assembly 98 both extend
linearly along a common axis. The plunger element 102 of each
connecting assembly 98 is slidable axially relative to both the
barrel 104 and the mounting sleeve element 100.
[0054] In one embodiment, each pair of a barrel 104 with a plunger
element 102 received therein is in turn removably received within a
respective one of the fixed mounting sleeve elements 100. In this
way, each pair of a barrel 104 with a plunger element 102 received
therein is replaceable relative to the programming tool 20 without
having to disconnect the terminal end 96 of the wiring 60 from the
fixed connection at the mounting sleeve element 100.
[0055] In more detail with respect to the illustrated embodiment,
the plunger element 102 includes a shaft portion 106 that is
slidably received within the respective barrel 104. The plunger
element 102 further includes a relatively radially enlarged head
portion 108 that is disposed outside of the barrel 104. Each of the
connecting assemblies 98 further includes a spring 110 that is
retained axially between the shaft portion 106 of the respective
plunger element 102 and an axial end of their respective barrel 104
(see FIGS. 7 and 8).
[0056] In one embodiment, as is particularly shown in FIG. 8, each
plunger element 102 is configured to directly contact and thereby
electrically connect to a respective motor terminal 42 upon
association of the tool body 58 with the electrical connection
block 40 of the motor 22. In this way, contact with a respective
motor terminal 42 causes the plunger element 102 to retract from
the extended position. In more detail with respect to the
illustrated embodiment, each radially enlarged head portion 108 of
the plunger elements 102 presents a conducting surface 112 that is
configured to directly contact the respective motor terminal 42. In
even more detail with respect to the illustrated embodiment, the
conducting surfaces 112 are multifaceted so as to provide multiple
contacting points with the respective motor terminal 42 when the
tool body 58 is associated with the electrical connection block 40
of the motor 22, although alternate conducting surfaces could take
other forms (e.g., planar or pointed) without departing from the
teachings of the present invention.
[0057] Also in one embodiment, each plunger element 102 is
configured to retract approximately one-eighth of an inch when
contacting the respective motor terminal 42 upon association of the
tool body 58 with the electrical connection block 40 of the motor
22 and securement of the tool body 58 on to the electrical
connection block 40 of the motor 22 (such as by moving the sliding
gate element 84 into the closed position as discussed above; see
FIGS. 3 and 8).
[0058] In the embodiment illustrated in FIGS. 1-8, not only is each
plunger element 102 configured to directly contact and thereby
electrically connect to a respective motor terminal 42 upon
association of the tool body 58 with the electrical connection
block 40 of the motor 22, but the connecting assemblies 98 are also
devoid of any receptacles for receiving the motor terminals 42
therein.
[0059] One suitable connecting assembly 98 that includes the
mounting sleeve element 100 and the plunger element 102 shiftable
relative to the mounting sleeve element 100 while maintaining
electrical connection therewith is available from the Contact
Products Group of Everett Charles Technologies of Pomona, Calif.,
as High Current/High Frequency Probe Model HCP-15.
[0060] Turning briefly now to FIG. 13, the circuitry 62 within the
electrical enclosure 64 will be described in more detail. The
circuitry 62 is electrically connected to the wiring 60, which
extends into the tool body 58, and is electrically connected to the
plurality of terminal connecting assemblies 98 as described above.
The circuitry 62 broadly includes a power transmission portion 114
and a data transmission portion 116.
[0061] The power transmission portion 114 includes a power input
118 that is connectable to a power source (not shown) for supplying
power to the motor 22 during programming. The data transmission
portion 116 includes a programming input 120 in the form of a
serial data connection that is connectable to a programming unit
(not shown) that generates the electrical signals. Preferably,
although not necessarily, the programming unit may take the form of
a personal computer or other suitable device for supplying the
program, which is typically supplied by a customer or other end
user of the motor 22.
[0062] In the illustrated embodiment, the power transmission
portion 114 of the circuitry 62 includes a time-delay relay element
122. The time-delay relay element 122 is configured to sense when
the connecting assemblies 98 are operably contacting the respective
motor terminals 42, initiate a time delay, and then electrically
connect circuitry elements so as to automatically transmit the
electrical signals to the motor controller for programming the
same.
[0063] The time delay provided by the integrated time-delay relay
element 122 helps to ensure that an electrical connection between
the connecting assemblies 98 of the motor programming tool 20 and
the programmable controller of the motor 22 is securely established
before the program is transmitted to the motor controller. The
circuitry 62 also automatically provides power to the motor 22
during programming, which can help to simplify and expedite the
programming process when used in the motor programming tool 20, as
will be readily understood by one of ordinary skill in the art upon
review of this disclosure.
[0064] Preferably, although not necessarily, the time delay
provided by the time-delay relay element 122 is selectively
variable. In one embodiment, the time-delay relay element 122 is
configured to initiate a delay of approximately 1.2 seconds before
electrically connecting the circuitry elements to automatically
transmit the electrical signals to the motor controller.
[0065] One suitable time-delay relay element 122 that provides a
selectively variable time delay is available from McMaster-Carr of
Elmhurst, Ill., as DIN-Rail Mnt Long-Life Timing Function Relay
on-Delay, 24-240 VAC/VDC, Product No. 7801K51.
[0066] The operation of the motor programming tool 20 should be
evident from the foregoing description, and therefore will be
described here only briefly. As an initial matter, a suitable power
source (not shown) and a suitable programming unit (not shown) are
connected to the power transmission portion 114 and the data
transmission portion 116, respectively, of the circuitry 62. In
this way, the circuitry 62 within the electrical enclosure 64 is
ready for sending electrical signals to the programming controller
of the motor 22.
[0067] The interface 66 of the tool body 58 is generally aligned
with the electrical connection block 40 of the motor 22 (see FIGS.
2 and 7). If so equipped, the sliding gate element 84 of the
shiftable locking mechanism is moved into the open position (see
FIG. 4). The motor programming tool 20 is then temporarily
associated with the electrical connection block 40 of the motor 22
such that the terminal connecting assemblies 98 are associated with
and electrically contacting the respective motor terminals 42, as
described above.
[0068] In more detail, in the embodiment depicted, the plunger
elements 102 of the connecting assemblies 98 are yieldably
retracted inwardly relative to the extended condition to facilitate
direct contact and electrical connection between the conducting
surfaces 112 and the respective motor terminals 42 (see FIGS. 1 and
8). If so equipped, the sliding gate element 84 of the shiftable
locking mechanism is moved into the closed position (see FIG. 3) to
retain the association and electrical connection between the
terminal connecting assemblies 98 and the respective motor
terminals 42.
[0069] Upon association and electrical connection between the
terminal connecting assemblies 98 and the respective motor
terminals 42, the time-delay relay element 122 senses such operable
contact, initiates a time delay, and then electrically connects
circuitry elements so as to automatically transmit the electrical
signals to the motor controller for programming the same. After a
predetermined amount of time, during which the delay is initiated
and the program is sent (something typically on the order of
approximately eight to ten seconds, although this amount can vary
based on the complexity of the program and the speed of the data
transmission portion 116 of the circuitry 62), the tool body 58 of
the motor programming tool 20 is then disassociated and removed
from the electrical connection block 40 of the motor 22 by
generally reversing the procedure above. The motor programming tool
20 is then ready to associate with and program another motor.
[0070] With reference now to FIGS. 9-12, another embodiment of a
motor programming tool 220 is depicted for temporarily associating
with an electric motor 222, wherein a similar tool body 258 and
wiring 260 operably transmit electrical signals to the programmable
controller of the motor 222. The motor programming tool 220 is very
similar in many respects to the motor programming tool 20, with
similar components between the two being numbered in similar
fashion, but differing by an order of two hundred. Therefore, for
the sake of brevity, only the components unique to this additional
embodiment of the motor programming tool 220 will be described in
detail, with a complete disclosure of the similar components being
readily understood by one of ordinary skill in the art upon a
review of the disclosure above.
[0071] As shown in FIGS. 10-12, the motor 222 includes an
electrical connection block 240, which houses a plurality of motor
terminals 242 that are electrically connected to internal motor
circuitry (not shown) via a plurality of wires 244. In particular,
the internal motor circuitry includes a programmable controller
(not shown) that is operable to control operational characteristics
(e.g., speed), and is electrically connected to at least some of
the motor terminals 242. With particular attention to FIGS. 11 and
12, each of the wires 244 is connected to a respective motor
terminal 242 in a conventional, substantially permanent manner,
such as by crimping (as shown) or by soldering.
[0072] The electrical connection block 240, as compared with the
electrical connection block 40 depicted in FIG. 2, does not include
projections or tangs for facilitating a secure connection between
the electrical connection block 240 and a matingly corresponding
electrical connection block (not shown). Rather, as shown in FIGS.
11 and 12, the depicted motor terminals 242 are in the form of
blade-type terminals, which in this embodiment rely on frictional
engagement with corresponding receptacles to facilitate secure
connection between the electrical connection block 240 and a
matingly corresponding electrical connection block (not shown), as
will be readily appreciated by one of ordinary skill in the
art.
[0073] As with the electrical connection block 40 described above,
the particular shape and configuration of the electrical connection
block 240 is provided by way of example only, as other shapes or
configurations could be used. In fact, an electrical connection
block of a motor is typically configured to match a matingly
corresponding electrical connection block (not shown) that is often
supplied by a customer or other end user of the motor. Again, the
structure and operation of the motor 222 (including the electrical
connection block 240 and the programmable controller electrically
connected thereto) is generally conventional in nature, as will be
readily appreciated by one of ordinary skill in the art, and need
not be described in further detail here.
[0074] Again, the illustrated motor programming tool 220 broadly
includes the tool body 258 and wiring 260 operably transmit
electrical signals to the programmable controller of the motor 222.
In fact, in some embodiments, the motor programming tool 220 may
further include the same circuitry 62 described above. For that
matter, it is briefly noted that the circuitry 62 described above
could also alternatively be used with other embodiments of motor
programming tools (not shown) without departing from the teachings
of some aspects of the present invention.
[0075] The tool body 258 includes an interface 266 that generally
matingly corresponds with the electrical connection block 240 of
the motor 222, such that the interface 266 is configured for
selective association therewith. In more detail regarding the
illustrated embodiment, the tool body 258 further includes a
proximal handle portion 268, an intermediate portion 270, a spacer
portion 324, and a distal tool terminal retaining plate portion 326
that presents the interface 266. Similar to the embodiment
described above, the portions of the tool body 258 may be secured
to one another with fasteners such as screws (not shown).
[0076] The handle portion 268 is substantial hollow to define a
cavity 276 therein. The intermediate portion 270 defines
therethrough a plurality of mounting holes 278. As in the
embodiment described above, wiring 260 extends into the tool body
258 (more specifically, within the cavity 276 defined within the
handle portion 268). The wiring 260 presents terminal ends 296 that
are disposed within the tool body 258.
[0077] With attention especially now to FIGS. 11 and 12, the
programming tool 220 further includes a plurality of terminal
connecting assemblies 298. Each of the terminal connecting
assemblies 298 is configured to operably associate with a
respective one of the plurality of motor terminals 242, with each
connecting assembly 298 being operably associated with a respective
motor terminals 242 upon association of the tool body 258 with the
electrical connection block 240 of the motor 222.
[0078] Similar to the embodiment described above, each connecting
assembly 298 broadly includes a mounting sleeve element 300 and a
plunger element 302 that is shiftable relative to the mounting
sleeve element 300 while maintaining electrical connection
therewith. Each mounting sleeve element 300 is electrically
connected to at least one terminal end 296 of the wiring 260. In
more detail with regard to the illustrated embodiment, each of the
mounting sleeve elements 300 is fixed relative to the tool body
258. In even more detail with regard to the illustrated embodiment,
each of the mounting sleeve elements 300 is secured within a
respective mounting hole 278 of the intermediate portion 270 of the
tool body 258. The terminal ends 296 of the wiring 260 may be
substantially permanently connected to the mounting sleeve element
300, such as by crimping, soldering, or the like.
[0079] In the illustrated embodiment, each connecting assembly 298
further includes a barrel 304 that slidably receives a respective
one of the plunger elements 302 therein. Each barrel 304 is
disposed within and is electrically connected to a respective one
of the mounting sleeve elements 300. The mounting sleeve element
300 and barrel 304 of each connecting assembly 298 both extend
linearly along a common axis. The plunger element 302 of each
connecting assembly 298 is slidable axially relative to both the
barrel 304 and the mounting sleeve element 300.
[0080] In one embodiment, each pair of a barrel 304 with a plunger
element 302 received therein is in turn removably received within a
respective one of the fixed mounting sleeve elements 300. In this
way, each pair of a barrel 304 with a plunger element 302 received
therein is replaceable relative to the programming tool 220 without
having to disconnect the terminal end 296 of the wiring 260 from
the fixed connection at the mounting sleeve element 300.
[0081] In more detail with respect to the illustrated embodiment,
the plunger element 302 includes a shaft portion 306 that is
slidably received within the respective barrel 304. The plunger
element 302 further includes a relatively radially enlarged head
portion 308 that is disposed outside of the barrel 304. Each of the
connecting assemblies 298 further includes a spring 310 that is
retained axially between the shaft portion 306 of the respective
plunger element 302 and an axial end of their respective barrel 304
(see FIGS. 11 and 12).
[0082] In even more detail with respect to the embodiment depicted
in FIGS. 9-12, each connecting assembly 298 also includes a tool
terminal element 328 that is configured to directly contact and
thereby electrically connected to a respective motor terminal 242
upon association of the tool body 258 with the electrical
connection block 240 of the motor to 222. In particular, as shown
in FIGS. 11 and 12, each plunger element 302 is configured to
directly contact and thereby electrically connect to a respective
tool terminal element 328, such that each tool terminal element 328
is electrically interposed between the respective plunger element
302 and the motor terminal 242.
[0083] With continued reference to FIGS. 11 and 12, each plunger
element 302 is biased toward an extended condition and is yieldably
retractable inwardly relative to the extended condition. Each tool
terminal element 328 is positioned to cause the respective plunger
element 302 to retract from the extended position when in direct
contact therewith.
[0084] In the illustrated embodiment, each of the tool terminal
elements 328 includes conducting surfaces 330 that are configured
to directly contact a respective one of the motor terminals 242. In
more detail, the depicted tool terminal elements 328 are in the
form of receptacles configured to receive blade-type motor
terminals 242 (see FIGS. 11 and 12). It will be readily appreciated
by one of ordinary skill in the art, however, that alternative tool
terminal elements may take alternative forms without departing from
the teachings of the present invention.
[0085] With attention still to FIGS. 11 and 12, the tool terminal
retaining plate portion 326 of the tool body 258 is removable from
the other portions of the tool body 258 (such as by screws, as
described above). The tool terminal retaining plate portion 326
presents a distal interface margin 332 and an opposite proximal
margin 334. The tool terminal retaining plate portion 326 also
defines therethrough a plurality of tool terminal element receiving
recesses 336 that extend between the distal interface margin 332
and the proximal margin 334. Each of the tool terminal elements 328
is disposed within a respective tool terminal element receiving
recess 336 of the tool terminal retaining plate 326.
[0086] In more detail, each of the tool terminal element receiving
recesses 336 is shaped to taper from the proximal margin 334 to the
distal interface margin 332, such that a selected one of the tool
terminal elements 328 may be removably received within the tool
terminal element receiving recess 336 from the proximal margin 334,
but is restricted from exiting the tool terminal element receiving
recess 336 from the distal interface margin 332. In other words, as
will be readily appreciated by one of ordinary skill in the art
upon review of this disclosure, the tool terminal elements 328 are
readily replaceable, with removal of the tool terminal retaining
plate portion 326 from the remainder of the tool body 258
permitting replacement of the tool terminal elements 328.
[0087] In more detail, electrical decoupling of each tool terminal
element 328 from the wiring 260 (as necessary for replacement
thereof) requires only removal of the tool terminal element 328
from the yieldably biased contact with the respective plunger
element 302. In even more detail, since each tool terminal element
328 is removable from the tool terminal retaining plate portion 326
upon separation of the tool terminal retaining plate portion 326
from the remainder of the tool body 258, each tool terminal element
328 is replaceable without having to disconnect the terminal end
296 of the wiring 260 from the fixed connection at the mounting
sleeve element 300.
[0088] Operation of the motor programming tool 220 should be
evident from the foregoing description, and therefore will be
described here only very briefly. In short, the interface 266 of
the tool body 258 is generally aligned with the electrical
connection block 240 of the motor 222 (see FIGS. 10 and 11). The
motor programming tool 220 is then temporarily associated with the
electrical connection block 240 of the motor 222 such that the
terminal connecting assemblies 298 are associated with and
electrically contacting the respective motor terminals 242, as
described above (more specifically, such that the conducting
surfaces 330 of the tool terminal elements 328 directly contact the
blade-type motor terminals 242).
[0089] Upon association and electrical connection between the
terminal connecting assemblies 298 and the respective motor
terminals 242, the motor programming tool 220 transmits the
electrical signals to the motor controller for programming the
same. After a predetermined amount of time, during which the
program is sent, the tool body 258 of the motor programming tool
220 is then disassociated and removed from the electrical
connection block 240 of the motor 222 by generally reversing the
procedure above. The motor programming tool 220 is then ready to
associate with and program another motor.
[0090] With reference now to FIGS. 14-18, another embodiment of a
motor programming tool 400 is depicted for temporarily associating
with an electric motor 402. The motor 402 and motor programming
tool 400 are similar in some respects to the motor 22 and motor
programming tool 20 describe above, with elements of the motor 402
and motor programming tool 400 generally corresponding to
similarly-named elements of the motor 22 and motor programming tool
20 described above. Therefore, for the sake of brevity, only the
components unique to this additional embodiment of the motor
programming tool 400 will be described in detail, with a complete
disclosure of the similar components being readily understood by
one of ordinary skill in the art upon a review of the disclosure
above.
[0091] The motor 402 is substantially similar to the motor 22
described above with the exception that the motor 402 includes a
programming interface controller 404 mounted on an external surface
of the controller housing 406, as best illustrated in FIGS. 16 and
18. The interface controller 404 may extend the programmability of
the motor controller by including, for example, one or more
programmable elements (not shown) that interact with the
programmable controller of the motor 402 via a plurality of wires
408. The wires 408 interconnect the interface controller 404 with
the electrical connection block 410 of the motor 402, and are
operable to carry electrical power and signals to the programmable
controller of the motor 402. The wires 408 connect to the interface
controller 404 via a selectively removable connector 412 and may be
permanently or removably connected to the electrical connection
block 410 of the motor 402.
[0092] The interface controller 404 includes a generally
rectangular housing 414 that includes an electrical connection
block 416 disposed within the housing 414. As will be readily
appreciated by one of ordinary skill in the art, the electrical
connection block 416 houses a plurality of terminals (not shown)
that are electrically connected to internal circuitry of the
interface controller 404. Thus, the electrical connection block 416
may be similar or identical in nature to the electrical connection
block 40, described above. Generally speaking, the structure and
operation of the interface controller 404 (including the electrical
connection block 416 and the programmable controller electrically
connected thereto) are generally conventional in nature, as will be
readily appreciated by one of ordinary skill in the art, and need
not be described in further detail here. Furthermore, the interface
controller design may be otherwise varied without departing from
the scope of the present invention. The interface controller 442
may be temporarily (e.g., for programming purposes) or permanently
affixed to the controller housing 406. In any case, for purposes of
the present invention, the interface controller 442 presents the
connection block of the motor 402 for interfacing with the tool
400.
[0093] The motor programming tool 400 is configured to associate
with the connection block 416 of the interface controller 404 and
communicate electrical signals to programming elements of the
interface controller 404, to the programmable controller of the
motor 402, or both. The motor programming tool 400 broadly includes
a tool body 418 and flexible conduit 420 for carrying wire between
the tool body 418 and an external component, such as an enclosure
similar to the enclosure 64 described above.
[0094] An interface 422 of the tool 400 includes a plurality of
terminal connecting assemblies 424, a rigid shroud 426 that defines
a partially-enclosed area proximate the terminal connecting
assemblies 424, and a pivotable latch 428 that is operable to
selectively secure the tool body 418 onto the housing 414 of the
interface controller 404. Each of the terminal connecting
assemblies 424 is configured to associate with a respective one of
the plurality of interface element terminals, with each connecting
assembly 424 operably contacting a respective interface controller
terminal upon association of the tool body 418 with the electrical
connection block 416 of the interface controller 404. The terminal
connecting assemblies 424 may be similar or identical in form and
function to the terminal connecting assemblies 98 described
above.
[0095] The shroud 426 is defined by three substantially rigid walls
430,432,434 that cooperatively define the partially enclosed area
proximate the terminal connecting assemblies 424. The
partially-enclosed area defined by the walls 430,432,434 of the
shroud 426 at least partially corresponds to the shape of an outer
surface of the interface controller housing 414 such that the
shroud 426 matingly engages the interface controller 404 upon
association of the tool body 418 with the electrical connection
block 416 of the interface controller 404. A pair of opposing
flanges 436,438 project inwardly from opposing portions of lateral
walls 430,434 of the shroud 426 and slidingly engage corresponding
recessed areas of the interface controller housing 414 proximate
the motor 402.
[0096] The pivotable latch 428 is pivotably connected to the tool
body 418 for selectively engaging the interface controller housing
414 to prevent movement of the programming tool 400 relative to the
interface controller 404 when the programming tool 400 is connected
to the interface controller 404. The pivotable latch 428 includes a
lever portion 440 and an arm portion 442 that pivot about an axis
defined by a pivot pin 444. The lever portion 440 angles away from
the tool body 418 when the latch 428 is in the closed position,
such that the latch 428 may be selectively pivoted between an open
position (illustrated in broken lines in FIG. 15) and a closed
position (illustrated in solid lines in FIG. 15). A spring element
446 is associated with the pivot pin 444 and biases the pivotable
latch 428 toward the closed position.
[0097] A distal end of the arm portion 428 of the pivotable latch
defines a catch element 448 that engages the interface controller
housing 414 when the tool 400 is connected to the interface
controller 404 and when the pivotable latch 428 is in the closed
position, as illustrated in FIGS. 14 and 15.
[0098] Operation of the motor programming tool 400 should be
evident from the foregoing description, and therefore will be
described here only very briefly. In short, the shroud 426 of the
tool body 418 is generally aligned with the electrical connection
block 416 of the interface controller 404 and the pivotable latch
428 is pivoted to the open position, as illustrated in FIG. 16. The
motor programming tool shroud 426 is then slid over the interface
controller housing 414 such that the terminal connecting assemblies
424 are associated with and electrically contacting the respective
motor terminals, as described above. The pivotable latch 428 is
pivoted from the open position to the closed position (see FIG.
15). After the motor 402 is programmed, the pivotable latch 428 is
pivoted to the open position and the programming tool 400 is
disassociated and removed from the interface controller 404 by
sliding the tool 400 upward (FIG. 16) and off of the interface
controller 404.
[0099] With reference now to FIGS. 19-20, another embodiment of a
motor programming tool 500 is depicted for temporarily associating
with the electric motor 402. The motor programming tool 500 is
similar in some respects to the motor programming tool 400 describe
above, with elements of the motor programming tool 500 generally
corresponding to similarly-named elements of the motor programming
tool 400 described above. Therefore, for the sake of brevity, only
the components unique to this additional embodiment of the motor
programming tool 500 will be described in detail, with a complete
disclosure of the similar components being readily understood by
one of ordinary skill in the art upon a review of the disclosure
above.
[0100] The motor programming tool 500 broadly includes a tool body
502 and a flexible conduit 504 for carrying wire between the tool
body 502 and an external component, such as an enclosure similar to
the enclosure 64 described above. The body 502 includes a handle
portion 506, an intermediate portion 508, and a connector portion
510 presenting an interface similar or identical to the interface
422 described above. The intermediate portion 508 houses circuitry
512 for performing certain electrical functions of the motor
programming tool 500. The circuitry 512 is similar to the circuitry
62 described above and includes both a power transmission portion
and a data transmission portion. External attachment components,
such as a power input similar to power input 118 and a similar
physical connector associated with the data transmission portion of
the circuitry, may remain in the external component or otherwise
remote from the body 502 and be connected to the circuitry 512 via
wiring carried by the flexible conduit 504. Thus, all elements 516
of the circuitry 512 except for external attachment components are
preferably disposed in the tool body 502. If a programming input
associated with the data transmission portion of the circuitry 512
includes a wireless interface, the wireless interface may be housed
in the body as well.
[0101] In the illustrated embodiment, the circuitry 512 is
contained on a circuit board 514, such as a printed circuit board,
housed within the intermediate portion 508 of the body. The circuit
board may be populated with the circuit elements and then
positioned within the body. The circuitry 512 may alternatively be
positioned elsewhere within the tool body 502. For example, all or
a portion of the circuitry 512 may be disposed in the handle
portion 506 of the tool body 502. Visual programing signals (e.g.,
LEDS) 518 are preferably coupled to the board and visible through
the tool body 502 to signal operation of the tool 500. In the
illustrated embodiment, the LEDS 518 are positioned within the
intermediate portion 508 of the tool body 502.
[0102] One notable difference between the circuitry and the
circuitry 62 is that the circuitry is disposed in the motor
programming tool 500 while the circuitry is housed in the external
enclosure 64. Because the circuitry 512 is positioned in closer
physical proximity to the interface of the tool body 502, issues
such as attenuation and interference that may arise from use of
lengthy transmission lines between the circuitry 512 and the
interface are eliminated.
[0103] Those of ordinary skill in the art will appreciate that any
suitable combination of the previously described embodiments may be
made without departing from the spirit of the present invention.
For example, if desired, the aspect of the body-mounted circuitry
(see FIGS. 19 and 20) may be combined with the tool design depicted
in FIGS. 1-12.
[0104] The preferred forms of the invention described above are to
be used as illustration only, and should not be utilized in a
limiting sense in interpreting the scope of the present invention.
Obvious modifications to the exemplary embodiments, as hereinabove
set forth, could be readily made by those skilled in the art
without departing from the spirit of the present invention.
[0105] The inventors hereby state their intent to rely on the
Doctrine of Equivalents to determine and access the reasonably fair
scope of the present invention as pertains to any apparatus not
materially departing from but outside the literal scope of the
invention set forth in the following claims.
* * * * *